Louis Tomlinson is the latest One Direction bandmate to release music during the 1D-hiatus, but the single has resonated on a different level with the ever-passionate One Direction fandom.

The 24 year-old teamed up with DJ/producer Steve Aoki for the song, “Just Hold On.” Tomlinson offered an emotional performance of the track on “The X-Factor” in the UK following the death of his mother Johannah Deakin, who passed after a battle with Leukemia on December 7. The appearance was booked prior to her passing.

Photo: instagram.com/louist91/

Now, similar to what “Directioners” attempted with the songs “No Control” and “Home,” fans are mobilizing online and lobbying radio stations to spin the single. The difference is that in addition to raising chart positions, the group is hoping to raise awareness for a handful of charities near to both Tomlinson and Aoki’s hearts.

“It just seems like a tribute,” said Lexi Preddie, one of the fans in the U.S. behind the movement. She is managing the Twitter account “@ProjectJHoldOn” which is keeping others informed on the latest news and figures regarding the track. “The things that (Tomlinson) sings in the song, it sounds like things (his mom) had said to the fans.

“She almost felt like a mother-figure to us, because she just was always spreading positivity.”

Now the fandom is spreading the word on the song, hoping in the process to shine a light on Eden Dora Trust, Believe In Magic, Leukemia Awareness/Bloodwise and The Aoki Foundation.

On Tuesday, Johannah’s husband Dan took to her Twitter account to send one final message to the fans.

“She wanted to thank you all, and to let you know that you have been amazing right from the start,” he relayed. “You changed Louis’ life, but also her life. Your support now is as strong if not stronger than ever.”